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Vishay General Semiconductor - Diodes Division SMPC64ANHM3/I
- Part No.:
- SMPC64ANHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
SMPC64ANHM3/I.pdf
- Description:
- TVS DIODE 64VWM 103VC TO277A
- Quantity:
- Payment:
- Shipping:
Inventory:5,634
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Product details
Overview
SMPC64ANHM3/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in the TRANSZORB® family, designed for high-energy surge protection on DC power rails and signal lines. It features a 64 V stand-off voltage (VWM), 71.1–78.6 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and 103 V maximum clamping voltage (VC) at 14.6 A IPPM - deployed in automotive engine control units to protect CAN transceivers from load-dump transients.
For engineers reviewing the SMPC64ANHM3/I datasheet, SMPC64ANHM3/I pinout, SMPC64ANHM3/I application, or SMPC64ANHM3/I equivalent, key selection criteria include its AEC-Q101 qualification, TO-277A (SMPC) package with cathode-band polarity marking, low 1.1 mm profile for space-constrained PCBs, and verified clamping performance under 10/1000 μs surge waveforms.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds VBR (71.1–78.6 V), entering low-impedance conduction to clamp transients. Its junction-to-mount thermal resistance (RθJM) is 2.5–3 °C/W, enabling effective heat transfer to a heatsink-mounted PCB pad - critical for sustained surge handling in automotive under-hood environments.
It complies with JESD201 Class 2 whisker testing and meets MSL Level 1 per J-STD-020 (260 °C peak reflow), supporting lead-free assembly. The SMPC64ANHM3/I variant is explicitly AEC-Q101 qualified (per document note on page 2), distinguishing it from industrial-grade M3-suffix parts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64.0 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 71.1 V / 78.6 V at 1.0 mA - guaranteed avalanche initiation window for predictable turn-on |
| VC @ IPPM | 103 V at 14.6 A - clamped voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient power dissipation capability under standardized surge waveform |
| TJ max | +150 °C - maximum junction temperature rating, enabling operation in under-hood automotive zones |
| Package | SMPC (TO-277A) - 3-terminal surface-mount package with anode-cathode-anode configuration |
| Polarity | Unidirectional - cathode marked by band; conducts only during negative transients relative to anode |
Pinout & Package
SMPC64ANHM3/I uses the SMPC (TO-277A) package: a 3-terminal, low-profile (1.1 mm typical height), halogen-free, RoHS-compliant, AEC-Q101-qualified surface-mount outline conforming to JEDEC TO-277A. Terminals are matte tin-plated for solderability per J-STD-002 and JESD22-B102. Polarity is indicated by a cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Primary current entry path during clamping | Connected to protected line (e.g., CAN_H); forms one half of dual-anode structure for symmetric layout |
| Cathode | Common clamping node | Connected to ground or reference plane; carries full surge current during transient event |
| Anode 2 | Secondary current entry path during clamping | Connected to same protected line as Anode 1; enables balanced current sharing and lower effective dynamic impedance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS modules |
| Low-profile SMPC package | 1.1 mm typical height enables use in ultra-thin modules and tight board spacing |
| Dual-anode architecture | Reduces incremental surge resistance and improves clamping consistency across high-current pulses |
| Fast response time | Sub-nanosecond turn-on ensures protection before sensitive ICs experience overvoltage damage |
| MSL Level 1 rating | Supports standard SMT reflow without moisture sensitivity concerns (260 °C peak) |
Applications
| Automotive CAN Bus Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L lines in vehicle ECUs against ISO 7637-2 load-dump and coupled transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed directly at connector interface to shunt surge energy to chassis ground. Use Value: Clamps to ≤103 V during 14.6 A surges, keeping CAN transceiver inputs within safe operating area per ISO 11898-2. | Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to relay coil flyback and ESD. IC Role / Device Role / Timing Role: Primary overvoltage suppression device mounted adjacent to terminal block to intercept transients before signal conditioning circuitry. Use Value: Withstands repetitive 1500 W surges and maintains <1 μA leakage at 64 V, ensuring stable logic-level detection. |
| Telecom Power Rail Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing +48 V DC power feeds in telecom base station backplanes against lightning-induced surges. IC Role / Device Role / Timing Role: High-power TVS connected between supply rail and ground plane to absorb multi-kW transients without degradation. Use Value: Delivers 1500 W peak pulse power with RθJM ≤3 °C/W, enabling direct thermal coupling to copper pour for reliable long-term operation. | Use Scenario: Shielding microcontroller GPIOs and gate drivers in smart washing machine motor control boards from brush-commutator noise. IC Role / Device Role / Timing Role: Localized TVS on motor driver supply and feedback lines to suppress fast-rising commutation spikes. Use Value: Fast response and low clamping voltage (103 V) prevent false triggering and latch-up in 3.3 V/5 V logic interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64AHE3/5AT | DO-214AC (SMA) package; 64 V VWM; 1500 W PPPM; not AEC-Q101 qualified | Industrial-only use; lacks automotive qualification and dual-anode low-Rsurge advantage | Select when cost-sensitive industrial designs require legacy SMA footprint compatibility |
| SMCJ64A-Q | DO-214AB (SMC) package; 64 V VWM; 1500 W PPPM; AEC-Q101 qualified; single-anode | Same automotive qualification but higher clamping voltage (104 V) and larger 2.3 mm height | Select when board height >1.1 mm is acceptable and dual-anode symmetry is not required |
Compared with SMAJ64AHE3/5AT and SMCJ64A-Q, the SMPC64ANHM3/I offers the lowest profile (1.1 mm), dual-anode architecture for improved surge sharing, and explicit AEC-Q101 validation - making it optimal for space-constrained, high-reliability automotive PCBs where thermal coupling and layout symmetry matter.
Availability
SMPC64ANHM3/I is available at Aetrix Electronics and suitable for automotive electronics, industrial PLCs, and telecom infrastructure requiring stable component supply with full AEC-Q101 traceability and long-lifecycle support.
Supply support for SMPC64ANHM3/I includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and automotive-grade qualification.
The SMPC series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 compliance and robust surge immunity.
FAQ
What is the clamping voltage of the SMPC64ANHM3/I under a 10/1000 μs surge?
The SMPC64ANHM3/I has a maximum clamping voltage (VC) of 103 V at 14.6 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per Figure 1 and Table on page 2 of Vishay Document 89116 and defines the upper voltage limit imposed on protected circuits during standardized surge events. The SMPC64ANHM3/I maintains this clamping performance across its qualified operating temperature range.
Is the SMPC64ANHM3/I AEC-Q101 qualified?
Yes, the SMPC64ANHM3/I is explicitly AEC-Q101 qualified, as confirmed in the "Ordering Information" table (page 3) and "Notes" section (page 2) of Vishay Document 89116. The "HM3" suffix denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction. This qualification covers stress tests including HTGB, AC-H3TRB, and temperature cycling - validating suitability for automotive under-hood and chassis applications.
What does the "I" suffix mean in SMPC64ANHM3/I?
The "I" suffix in SMPC64ANHM3/I indicates the preferred package code for 13-inch diameter plastic tape and reel delivery, with a base quantity of 6500 units per reel. Per Vishay's ordering table (page 3), this packaging option supports high-volume SMT assembly and is compatible with standard pick-and-place equipment. The "I" does not affect electrical or thermal specifications - only logistics and reel format.
How is polarity identified on the SMPC64ANHM3/I package?
Polarity on the SMPC64ANHM3/I is identified by a cathode band printed on the top surface of the SMPC (TO-277A) package. As shown in the mechanical drawing (page 5), the band aligns with the Cathode terminal, while the two outer terminals are Anode 1 and Anode 2. This marking is consistent across all SMPCxxAN variants and enables correct orientation during automated placement and manual inspection.
What is the thermal resistance from junction to mount (RθJM) for SMPC64ANHM3/I?
The SMPC64ANHM3/I has a typical junction-to-mount thermal resistance (RθJM) of 2.5 °C/W and a maximum of 3 °C/W, per the Thermal Characteristics table (page 3) of Vishay Document 89116. This parameter is measured using the Transient Dual Interface Test Method (TDIM) per JEDEC 51-14 and reflects thermal performance when the device is soldered to a copper pad acting as a heatsink - critical for managing power dissipation during repeated surge events.
SMPC64ANHM3/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-277, 3-PowerDFN
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 64V
- Voltage - Breakdown (Min):
- 71.1V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277A (SMPC)
SMPC64ANHM3/I FAQ
1.How can I place an order for SMPC64ANHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMPC64ANHM3/I on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMPC64ANHM3/I reliable?
The price and inventory of SMPC64ANHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMPC64ANHM3/I is usually 5 days.
3.What payment methods are accepted for SMPC64ANHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMPC64ANHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMPC64ANHM3/I?
SMPC64ANHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMPC64ANHM3/I order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMPC64ANHM3/I?
For technical support, including SMPC64ANHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMPC64ANHM3/I requirements.
6.How does Aetrix verify that SMPC64ANHM3/I is sourced from the original manufacturer or authorized distributors?
All SMPC64ANHM3/I products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMPC64ANHM3/I meets industry standards.
7.What is the process for return or replacement of SMPC64ANHM3/I?
All SMPC64ANHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SMPC64ANHM3/I, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMPC64ANHM3/I part is unused and in its original packaging.
Return procedure for SMPC64ANHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMPC64ANHM3/I Tags
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